The DACx760 are precision, fully integrated,
12-bit and 16-bit digital-to-analog converters (DACs) designed to meet the
requirements of industrial process-control applications. These devices are
programmable as a current output with a range of 4 mA to 20 mA, 0 mA to 20 mA, or
0 mA to 24 mA; or as a voltage output with a range of 0 V to 5 V, 0 V to 10 V, ±5 V,
or ±10 V with a 10% overrange (0 V to 5.5 V, 0 V to 11 V, ±5.5 V, or ±11 V). Both
current and voltage outputs can be simultaneously enabled while being controlled by
one data register.These devices include a power-on-reset function
for powering up in a known state (both IOUT and VOUT are disabled and in a Hi-Z
state). The CLR and CLR-SEL pins set the voltage outputs to zero-scale or midscale,
and the current output to the low end of the range if the output is enabled. Zero
and gain registers can be programmed to digitally calibrate the device in the end
system. The output slew rate is also programmable by register. These devices can
superimpose an external HART signal on the
current output, and operate with either a single 10-V to 36-V supply, or dual
supplies of up to ±18 V.
